Pump-valve and valve-deck.



A. F. NAGLE.

PUMP VALVE AND VALVE DECK.

APPLIGATION FILED 1112115, 1913.

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Patented Deo. 30, 1913.

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A. F. NAGLE.

PUMP VALVE AND VALVE DECK.

APPLIGATION FILED APR.5,1913.

1,082,646. Paenteanec. 3o, 1913.

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AUGUSTUS F. NAG-LE, OF BETHLEHEM, PENNSYLVANIA.

PUMP-VALVE .AND VALVE-DECK.

Specicaton of Letters Patent.

Ijatented Dee. 30, 1913.

Application filed April 5, 1913. Serial No. 759,004.

To all whom t may concern.'

Be it known that I, AUGUSTUS F. NAGLE, residing at Bethlehem, in thecounty of Northampton and State of Pennsylvania, have invented certainnew and useful Improvements in Pump-Valves and Valve- Decks, whereof thefollowing is a specification, reference being had to the accompanyingdrawings.

My invention relates to a valve deck for pumps, upon which a number ofsmall valves are mounted. These larger decks are expensive and theadjoining castings a source of weakness to the pump. It is hencedesirable to keep the deck as small as can be done without undulylimiting the capacity of the` valves.

My invent-ion relates to a method of construction whereby without undulyweakening the valve deck, a greater quantity of water may be caused totravel through the valves mounted thereon, than in previousconstructions. This is accomplished by so spacing the apertures of thevalve deck, as to aliord the maximum total aperture without undueweakening of the deck, and then providing each aperture with a flaringor bell-shaped valve body, standing out from the deck, so that the totalultimate aperture at the valve seat is at least equal to thecorresponding aperture of the valve deck, notwithstanding theinterposition near the valve seat, of the necessary supporting frame forthe valve stud. In this way I have succeeded in greatly increasing thecapacity of a valve deck of this character. At the same time eachindividual valve is visible for examination in contrast with the valvesnow prevalently used in the well known cage construction, on which thevalves are mounted in cages which are mounted on the valve deck. Myconstruction also gives ready access for repairs or renewals, withoutdisturbing any other valve, and without breaking any permanent joints.

In the accompanying drawings, Figure I, represents a circular valve deckas employed in my construction, the valves being removed therefrom. Fig.II, is a section of the same along the line II, II, with the valves asitu. Fig. III, is an enlarged elevation of a part of Fig. II.

The valve deck is provided with numerous apertures 2, in staggeredrelation to each other, and so spaced as not to unduly weaken the valvedeck, as would be the case if the apertures were more closely to eachother. In a large deck it is desirable that means tor strengthening thedeck should be provided in the form of webs 3, 3, on the under side ofthe deck.

Each aperture 2, is threaded and has screwed into it, a valve body 5,terminating in a circular' valve seat 6, furnished near the top thereofwith a spider frame 7, which supports centrally the valve stud S, aroundwhich slides the hard rubber valve 9, under compression by the exposedspiral spring I0, which is interposed between a metal washer l1,attached to the upper surface of the valve, and a metal cap l2, fastupon the top of the stud.

It is characteristic of my invention that the valve body 5, which isattached at its lower end to the aperture in the valve deck, flaresupwardly toward its seating surface, thereby assuming a bell-shape. Inthis way, I am able to interpose the spiderframe, or other supportingmeans for the valve stud, within the aperture of the valve seat, withoutrestricting its effective orifice, the capacity of the valve remainingthe same as that of the aperture in the valve deck, through which thewater flows to it. These valve seats are not so closely mounted to eachother, but that each one is accessible for separate examination andrepair, and it will be noted that all working parts of the valve areleft entirely open, there being no casing surrounding the valve or itsoperating parts.

The valve bodies heretofore used have had straight sides, and theirthroats obstructed by the ribs supporting the central stud, therebylimiting the capacity of the valve. If, to overcome this. the size ofthe valve body is increased, the spaces between the threaded holes inthe valve deck become so small, as to unduly weaken it. This is clearlyshown in Fig. III, where the minimum' valve space 13, is accompanied bythe maximum strength of metal 14. Were it not for my invention thespaces 13, and 14.-, would be substantially alike, with the consequencesdescribed.

As an expression of the value of my invention, I may state that I canobtain with similar proportions of strengths, the same number of valveson a forty-eight inch deck, with my invention, as would require a ftysixinch deck in previous constructions. It will be understood that myinvention does not relate to the construction of the valve sides whichare flared outwardly between proper, which may vary. the plane of thevalve deck and the plane of Having thus described my invention, I thevalve supporting means.

claim: In testimony whereof I have hereunto 15 The combination of a.valve deck provided Signed my name at Philadelphia, Pennsylwith amtltiplcity of apertures; valve bodies Vania, this third day of April,1913.

associatec with each a erture and nrol'ectin@ T from the pla-ne ofthepvalve deck, 1said valv, AUGUSTUS F' BAGLE' bodies being providedwith valve seats,

valves, and valve supporting means outside of the plane of the Valvedeck, and with lVitnesses JAMES H. BELL, E. L. FULLERTON.

Copies of this patent may 'be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

